The head ships with two jugs. I normally dump a nearly full one, rinse it out three times with clean water
, put a couple of ounces of bleach in the bottom, put the lid on and let it sit for a day or two, empty the bleach, rinse it out again, and then put it over the nets on my boat with the opening facing the wind
for a day or two, and then store it. It may take four or five days from the time I dump it till I put it back in the head.
I also have a spray bottle with diluted Mr. Clean I keep by the head and spray a few squirts in the holes that drain into the jug to control crystalization of the urine.